Section 5: Inspection Examination and Testing Practices Flashcards
(117 cards)
1
Q
- All in-service pressure vessels in the petrochemical industry must:
a. have been hydrotested prior to service.
b. be built to ASME Section VIII.
c. be post weld heat treated if the thickness is over 1-1/2”.
d. have an inspection plan.
A
d. have an inspection plan.
2
Q
- All in-service pressure relief devices in the petrochemical industry must:
a. have an inspection plan.
b. be built to ASME Section IV.
c. be set at a pressure not higher than 100% of MA WP.
d. have a balanced bellows.
A
a. have an inspection plan
3
Q
- The inspection plan for a pressure vessel should be developed by:
a. the Inspector.
b. the Engineer.
c. both the Inspector and the Engineer.
d. either the Inspector or the Engineer.
A
d. either the Inspector or the Engineer.
4
Q
- The inspection plan for a pressure relief device should be developed by:
a. the Inspector.
b. the Engineer.
c. either the Inspector or the Engineer.
d. both the Inspector and the Engineer.
A
c. either the Inspector or the Engineer.
5
Q
- When developing a vessel’s inspection plan, who should help, when needed, to identify specific damage mechanisms and their locations?
a. Inspector
b. Corrosion Specialist
c. Engineer
d. Either the Corrosion Specialist or the Engineer
e. Either the Corrosion Specialist or the Inspector or the Engineer
A
b. Corrosion Specialist
6
Q
- A significant factor in developing an inspection plan is to determine the:
a. anticipated costs.
b. anticipated schedule.
c. availability of NDE examiners.
d. potential damage mechanisms.
A
d. potential damage mechanisms.
7
Q
What is the MOST important factor when selecting the NDE to use in a future inspection?
a. Ability of the method to find the anticipated damage mechanism
b. Availability of NDE method
c. Cost of NDE method
d. Ease of use of the NDE method
A
Ability of the method to find the anticipated damage mechanism
8
Q
- Which of the following is not a factor in determining the interval for examinations in a vessel’s Inspection Plan?
a. Cost of equipment outage
b. IOW exceedances
c. Maximum code intervals
d. Probability that the NDE will find expected damage
e. Rate of damage occurring
A
a. Cost of equipment outage
9
Q
- Which of the following is not required to be included in a vessel’s Inspection Plan?
a. Name of individual that will perform the inspection
b. Next inspection date
c. Surface cleaning requirements
d. Type of NDE that will be used
A
a. Name of individual that will perform the inspection
10
Q
- Which of the following is not required in a vessel’s Inspection Plan?
a. Lighting requirements
b. Location where NDE will be performed
c. Planned pressure tests
d. Planned repairs
A
a. Lighting requirements
11
Q
- What “Optional Item” should really be part of a vessel’s Inspection Plan?
a. Confined entry requirements
b. Special access requirements
c. Special lighting requirements
d. Types of damage expected in the vessel
A
d. Types of damage expected in the vessel
12
Q
- In the RBI process, what are the two primary factors used to determine risk?
a. Consequence of Failure and Service Class
b. Reliability and the On-stream Percentage
c. Probability and Consequence of Failure
d. Inspection Effectiveness and Corrosion Mechanism
A
c. Probability and Consequence of Failure
13
Q
- Who is responsible to decide whether an RBI assessment will be used to determine inspection intervals for a pressure vessel?
a. Corrosion Specialist
b. Inspector
c. Owner/User
d. Pressure Equipment Engineer
A
c. Owner/User
14
Q
- RBI assessments should be done in accordance with:
a. API 579.
b. API 580.
c. API 583.
d. API 584.
A
b. API 580.
15
Q
- Which of the following is not a significant factor in an RBI assessment of a pressure vessel?
a. Vessel construction code
b. Process fluid
c. Potential degradation mechanisms
d. Effectiveness of past inspections
A
a. Vessel construction code
16
Q
- During a risk assessment, which of the following is not a significant factor in the Probability of Failure?
a. Amount of process fluid
b. Expected damage mechanism(s)
c. Quality of the inspection program
d. Quality of the maintenance program
A
a. Amount of process fluid
17
Q
- During an RBI assessment of a pressure vessel, what are the two biggest factors of Consequence of Failure?
a. Amount of product and expected corrosion rate
b. Amount of product and type of product
c. Expected corrosion rate and type of product
A
b. Amount of product and type of product
18
Q
- During a RBI assessment, which of the following is not a significant factor in the Consequence of Failure?
a. Environmental damage
b. Equipment damage
c. Equipment downtime
d. Health impacts
e. Public image
A
e. Public image
19
Q
- All RBI assessments must be:
a. thoroughly documented.
b. repeated every 5 years.
c. approved only by the authorized inspector.
d. conducted per guidelines in API 579.
A
a. thoroughly documented.
20
Q
- An RBI assessment is used to determine the interval for the internal inspection. When does the RBI assessment not have to be repeated?
a. After each internal inspection
b. After any significant process change
c. After any significant change in inspection personnel
d. After any significant hardware change
e. At least once every 10 years
A
c. After any significant change in inspection personnel
21
Q
- All NDE equipment used in petrochemical facilities must:
a. have a safety rating appropriate for the gaseous environment at the exam site.
b. be calibrated daily.
c. be used by a technician that is qualified to ASNT SNT- TC-lA.
d. have an ASME Section V approval seal.
A
a. have a safety rating appropriate for the gaseous environment at the exam site.
22
Q
- Which of the following is not a requirement prior to performing an internal vessel inspection?
a. Review previous vessel history
b. Obtain permission from the appropriate operation personnel
c. Check that all equipment used during the inspection is safe to use
d. Be certified as an ASNT SNT-TC-lA Level 2 in VT
A
d. Be certified as an ASNT SNT-TC-lA Level 2 in VT
23
Q
- Prior to performing an inspection, the inspector should:
a. calibrate their pit gauge.
b. familiarize themselves with prior history.
c. review API 571 for expected damage mechanisms.
d. retake an eye test.
A
b. familiarize themselves with prior history.
24
Q
- Prior to performing an inspection, which of the following is not a requirement for the inspector?
a. Familiarize themselves with current inspection plan
b. Familiarize themselves with past inspection plans
c. Familiarize themselves with prior inspection history
d. Familiarize themselves with prior repairs
A
b. Familiarize themselves with past inspection plans
25
25. Which of the following damage mechanisms creates either general or localized corrosion?
a. Graphitization
b. HTHA
c. Naphthenic Acid
d. Temper Embrittlement
c. Naphthenic Acid
26
26. Which of the following damage mechanisms does not create either general or localized corrosion?
a. Fatique
b. Galvanic
C. MIC
d. Sulfidation
a. Fatique
27
27. Which of the following damage mechanisms does not create surface connected cracks?
a. Chloride stress corrosion cracking
b. Hydrogen induced cracking
c. Polythionic stress corrosion cracking
d. Thermal fatigue
b. Hydrogen induced cracking
28
28. Which damage mechanism creates sub-surface cracking?
a. Carbon dioxide corrosion
b. Caustic stress corrosion cracking
c. Mechanical fatigue
d. Wet hydrogen sulfide cracking
d. Wet hydrogen sulfide cracking
29
29. Which damage mechanism creates micro-fissuring which leads to macro-cracking?
a. Creep
b. Graphitization
c. Hydrogen blistering
d. Naphthenic acid
a. Creep
30
30. The inspector should be:
a. familiar with process conditions.
b. familiar with construction details.
c. familiar with potential damage mechanisms.
d. with all of the above.
e. with all of the above and walk on water.
d. with all of the above.
31
31. Vessels in cyclic service should be inspected for:
a. creep.
b. excessive strain.
c. fatigue.
d. stress corrosion cracking.
c. fatigue.
32
32. Where is a great place to check for damage on vessels that are subject to fatigue damage?
a. Nozzle-to-flange welds
b. Circumferential welds
c. Places of stress intensification
d. Shell-to-head weld
c. Places of stress intensification
33
33. Which of the following vessels is most likely to be affected by thermal fatigue?
a. Coke drum
b. Distillation column
c. Knockout drum
d. Overhead accumulator
a. Coke drum
34
34. Deviations from an inspection plan should be approved by the:
a. Engineer.
b. Engineer and Inspector.
c. Engineer or Inspector.
d. Engineer and Owner/User.
e. Engineer or Owner/User.
f. Inspector.
g. Inspector and Owner/User.
h. Inspector or Owner/User.
c. Engineer or Inspector.
35
35. Who is responsible to perform the Internal Inspection on a pressure vessel?
a. Authorized Inspector
b. Examiner
c. Authorized Inspector or an Examiner
d. Authorized Inspector or Qualified Others
a. Authorized Inspector
36
36. An NDE examiner can:
a. always assist in the Internal Inspection.
b. perform the Internal Inspection.
c. assist in the Internal Inspection when approved by the Engineer.
d. assist in the Internal Inspection when approved by the Inspector.
d. assist in the Internal Inspection when approved by the Inspector.
37
37. When may inspections from ports be substituted for the Internal Inspection?
a. Always
b. Never
c. Only if the Inspector approves
d. Only if the vessel is too small to enter
e. Only if the vessel is too small to enter or all internal surfaces of the vessel can be clearly seen from the port
e. Only if the vessel is too small to enter or all internal surfaces of the vessel can be clearly seen from the port
38
38. Prior to the Internal Inspection:
a. all removable internals must be removed.
b. all process deposits must be removed.
c. all removable internals and all process deposits must be removed.
d. some removable internals may not need to removed, but all process deposits must be removed.
e. some process deposits may not need to removed, but all removable internals
f. some removable internals and some process deposits may not need to be removed.
f. some removable internals and some process deposits may not need to be removed.
39
39. Who is responsible to determine whether process deposits should be removed prior to the Internal Inspection?
a. Pressure Equipment Engineer
b. Operating personnel
c. Corrosion Specialist
d. Authorized Inspector and the Corrosion Specialist
e. Authorized Inspector and the Pressure Equipment Engineer
f. Pressure Equipment Engineer or the Corrosion Specialist
d. Authorized Inspector and the Corrosion Specialist
40
40. Which of the following describes the needed surface preparation before performing an Internal Inspection?
a. 100% of surface to be cleaned to NACE #1 (white)
b. 100% of surface to be cleaned to NACE #2 (near white)
c. 25-50% of surface to be cleaned to NACE #1 (white)
d. 25-50% of surface to be cleaned to NACE #2 (near white)
e. The amount to clean and the degree of cleanliness is based on expected type of degradation mechanism(s)
e. The amount to clean and the degree of cleanliness is based on expected type of degradation mechanism(s)
41
41. Which of the following is true about the need to remove process deposits prior to Internal Inspection?
a. All deposits must always be removed
b. Amount to remove is based on the vessel classification
c. Amount to remove is based on the consequence of failure
d. Amount to remove is based on whether deposits actually protect the shell or cause corrosion
d. Amount to remove is based on whether deposits actually protect the shell or cause corrosion
42
42. Internal Inspection is conducted on a refractory-lined vessel. How much refractory should be removed to check the condition of the vessel's internal surface?
a. A minimum of 10% of the refractory should be removed
b. Remove a small area of refractory on each shell course, and each head
c. Remove at least one small area of refractory in the most suspect area
d. Removal of refractory is not required unless there is a reason to suspect that corrosion is occurring under the refractory
d. Removal of refractory is not required unless there is a reason to suspect that corrosion is occurring under the refractory
43
43. Who is responsible to perform a vessel On-stream Inspection?
a. Authorized Inspector
b. Examiner
c. Authorized Inspector or an Examiner
d. Authorized Inspector or Qualified Others
c. Authorized Inspector or an Examiner
44
44. All on-stream work performed by an Examiner must be approved by the:
a. Authorized Inspector.
b. Engineer.
c. Examiner's Employer.
d. Owner/User.
a. Authorized Inspector.
45
45. On-stream inspections:
a. should be performed while the vessel is pressurized.
b. should be performed while the vessel is depressurized.
c. can be performed while the vessel is pressurized or depressurized.
d. shall be performed by an Authorized Inspector.
c. can be performed while the vessel is pressurized or depressurized.
46
46. Who is responsible to perform the External Inspection on a pressure vessel?
a. Authorized Inspector
b. Examiner
c. Authorized Inspector or an Examiner
d. Authorized Inspector or Qualified Others
d. Authorized Inspector or Qualified Others
47
47. Personnel performing the External Inspection must:
a. be qualified by appropriate training.
b. have a valid API 510 certificate.
c. have a valid ASNT certificate.
d. have either an API 510 or appropriate ASNT certificate.
a. be qualified by appropriate training.
48
48. During the External Inspection extra attention should be given to:
a. anchor bolts.
b. attachment welds.
c. the nameplate.
d. condition of attachment piping.
b. attachment welds.
49
49. Weep-holes in repads should:
a. remain open on in-service vessels.
b. be used to test the repad welds during each vessel outage.
c. be threaded and plugged after fabrication is complete.
d. be used to pump leak sealant compounds in the cavity between the shell and the repad.
a. remain open on in-service vessels.
50
50. The inspection interval for buried vessels is based on the:
a. effectiveness of the external coatings.
b. effectiveness of cathodic protection (CP).
c. known corrosion rate.
d. known corrosion rate and the effectiveness of CP.
e. known corrosion rate and the effectiveness of external coatings.
d. known corrosion rate and the effectiveness of CP.
51
51. A portion of the soil around a buried vessel may be excavated to allow thickness measures of vessel to be taken. When excavating, care must be given so that:
a. the vessel wall is not punctured.
b. any cathodic protection is not damaged.
c. any external coating is not damaged.
d. any cathodic protection or any external coating is not damaged.
d. any cathodic protection or any external coating is not damaged.
52
52. Thickness measurements are taken to verify the:
a. thickness of the vessel component.
b. exchange rate between Canadian$ and USA$.
c. relative humidity.
d. number of fatigue cycles.
a. thickness of the vessel component.
53
53. The Inspector should consult with a Corrosion Specialist when:
a. CUI is discovered during the External Inspection.
b. the grounding connection is found corroded.
c. the short-term corrosion rate changes significantly.
d. determining an External Inspection interval.
c. the short-term corrosion rate changes significantly.
54
54. Who must assure that personnel performing thickness readings are trained and qualified?
a. Authorized Inspector
b. The Authorized Inspection Agency
c. Someone with a Level III UT certification
d. Owner/User
d. Owner/User
55
55. CUI is an inspection concern for insulated carbon steel vessels that operate between:
a. 0 to 100 °f.
b. 10 to 350 °f,
C. 25 to 250 °f,
d. 40 to 125 °f,
e. 140 to 350 °f,
b. 10 to 350 °f
56
56. CUI is an inspection concern for insulated austenitic stainless steel vessels that operate between:
a. 0 to 100 °f,
b. 10 to 350 °f,
c. 25 to 250 °f,
d. 40 to 125 °f,
e. 140 to 350 °f,
e. 140 to 350 °f
57
57. CUI is an inspection concern for insulated duplex stainless steel vessels that operate between:
a. 10 to 350 °f.
b. 40 to 125 °f.
C. 140 to 350 °f,
d. 280 to 350 °f.
d. 280 to 350 °f
58
58. CUI is an inspection concern for insulated vessels that operate at 500 °f. and:
a. are in intermittent service.
b. are made of stainless steel.
c. are made of low chromes.
d. have poorly maintained insulation.
a. are in intermittent service.
59
59. Which of the following insulated vessels is most likely to experience CUI?
a. CS vessel that operates at 600 °f. but is in an intermittent service
b. CS vessel that operates continuously at 375 °f.
c. CS vessel that operates continuously at -20 °f.
d. CS vessel operating at cyclic temperatures ranging from 400-600 °f.
e. Austenitic 55 vessel that operates continuously at 100 °f.
a. CS vessel that operates at 600 °f. but is in an intermittent service
60
60. CUI damage on carbon steel and low alloy materials usually appears as:
a. cracks.
b. isolated deep pitting.
c. localized corrosion.
d. uniform corrosion.
c. localized corrosion.
61
61. CUI of austenitic and duplex stainless-steel vessels:
a. occurs at temperatures between -10 to 125 °F.
b. normally appears as stress corrosion cracking.
c. is the result of using insulation that contains a sulfur compound.
d. normally causes deep isolated pitting.
b. normally appears as stress corrosion cracking.
62
62. CUI damage:
a. is usually not a major concern.
b. is usually a concern on insulated vessels once the vessel is 5 years old.
c. is very predictable.
d. can be very unpredictable.
d. can be very unpredictable.
63
63. Which of the following is not a most susceptible area for CUI damage on an insulated vessel?
a. Below stiffening rings
b. Bottom heads
c. Ladder clips
d. Nozzles
a. Below stiffening rings
64
64. External Inspection is planned for an insulated vessel. How much insulation should be removed to check the conditions of the external surface?
a. A minimum of 10% of the insulation should be removed
b. Remove a small area of insulation on each shell course, and each head
c. Remove at least one small area of insulation in the most suspect area
d. Insulation removal is not required unless there is a reason to suspect that corrosion is occurring under the insulation
d. Insulation removal is not required unless there is a reason to suspect that corrosion is occurring under the insulation
65
65. Which type of insulation is most likely to absorb and hold water?
a. Calcium Silicate
b. Cellular Glass
c. Fiberglass
d. Mineral Wool
a. Calcium Silicate
66
66. A CML is a spot for:
a. checking for various damage types, (wall loss, cracking, or HTHA).
b. only taking UT thickness readings.
c. only taking UT or Profile RT thickness readings.
d. use in RBI assessments and is called Corrosion Monitored Logic.
a. checking for various damage types, (wall loss, cracking, or HTHA).
67
67. When thickness readings are due, what is the minimum number of thickness readings that should be taken?
a. One on each head and shell course, and one on each nozzle
b. Two on each head and three on each shell course
c. Four on each head and each shell course, and one on 50% of the nozzles
d. A represented number of readings on heads, shell and nozzles
d. A represented number of readings on heads, shell and nozzles
68
68. Thickness readings are taken on a vessel. Which CMLs must always be included in this exam?
a. All the CMLs assigned to this vessel
b. CMLs with the highest corrosion rate
c. CMLs with the highest corrosion rate and the CML with lowest remaining life
d. CMLs with highest corrosion rate and highest remaining life
e. Whichever CMLs are selected by the Examiner
f. Whichever CMLs are selected by the Inspector
c. CMLs with the highest corrosion rate and the CML with lowest remaining life
69
69. A minimum number of CMLs on a vessel is acceptable when the:
a. corrosion rate is low and localized corrosion is not expected.
b. design pressure is less than 100 psig.
c. vessel is in an intermittent service.
d. process fluid is either a Class 2 or Class 3.
a. corrosion rate is low and localized corrosion is not expected.
70
70. UT thickness readings will be taken on a vessel. Which of the following best describes the process for taking readings at a specific examination point?
a. Take one reading and record
b. Take multiple readings and record the highest reading of the set
c. Take multiple readings and record the average of the set
d. Take multiple readings and record the lowest reading of the set
e. Take multiple readings and record the lowest reading or average of the set
f. Take multiple readings and record the highest reading or average of the set
e. Take multiple readings and record the lowest reading or average of the set
71
71. CMLs should always be:
a. measured with a digital UT instrument.
b. measured by someone certified to ASNT.
c. permanently marked on a drawing and/or on the vessel.
d. placed on each nozzle.
c. permanently marked on a drawing and/or on the vessel.
72
72. Who should be consulted about placement and number of CMLs for vessels with suspected localized corrosion?
a. Corrosion Specialist
b. Engineer
c. Examiner
d. Inspector
a. Corrosion Specialist
73
73. Which of the following conditions would justify fewer CMLs on a vessel?
a. Corrosion Rate is less than 0.010 ipy
b. Localize corrosion is expected
c. Uniform corrosion is expected
d. Vessel contains propane
c. Uniform corrosion is expected
74
74. The number of CMLs can be eliminated or reduced if:
a. the consequence of vessel failure is low.
b. the probability of vessel failure is low.
c. both the consequence and the probability of vessel failure is low.
d. either the consequence or the probability of vessel failure is low.
d. either the consequence or the probability of vessel failure is low.
75
75. Who should be consulted, if CMLs on a vessel are eliminated?
a. Corrosion Specialist
b. Engineer
c. Both the Inspector and the Engineer
d. Both the Inspector and the Corrosion Specialist
a. Corrosion Specialist
76
76. Who should be consulted, if CMLs on a vessel are substantially reduced?
a. Corrosion Specialist
b. Engineer
c. Both the Inspector and the Engineer
d. Both the Inspector and the Corrosion Specialist
a. Corrosion Specialist
77
77. The NDE method called Alternating Current Flux Leakage is useful in finding:
a. MIC damage.
b. porosity in weld.
c. subsurface cracks.
d. surface-breaking cracks.
d. surface-breaking cracks.
78
78. The NDE method called Advanced Ultrasonic Backscatter Technique is useful for detecting:
a. creep.
b. HTHA.
c. liquid metal embrittlement.
d. sulfidation.
b. HTHA.
79
79. Examiners performing UT flaw detection on welds on an in-service vessel should be qualified to:
a. ASNT SNT-TC-1A or equivalent.
b. ASME B&PV Section V.
c. API QUTE/QUSE or equivalent.
d. A WS UT-II.
e. GRS UT-FD (Global Rocket Scientist).
c. API QUTE/QUSE or equivalent.
80
80. Which of the following forms of degradation is most easily missed when performing a visual examination?
a. Uniform corrosion
b. Localized thinned areas
c. Random pitting
d. Isolated pitting
a. Uniform corrosion
81
81. What is the preferred examination technique for determining the vessel wall thickness of a 60" I.D. vessel that has localized thinning?
a. Spot UT
b. UT scanning
c. Profile RT
d. Spot UT or Profile RT
e. UT scan or Profile RT
b. UT scanning
82
82. What is a good examination technique for determining the nozzle wall thickness of an insulated 6 NPS nozzle that has localized thinning?
a. Spot UT
b. UT scan
C. UT angle beam
d. Profile RT
e. Transfer calipers
d. Profile RT
83
83. Thickness readings are taken using UT. At what temperature should special procedures be used in order to ensure accurate readings?
a. Above 150 °F.
b. Above 250 °F.
c. Above 400 °F.
d. Above 500 °F.
a. Above 150 °F.
84
84. Which of the following is not a factor that contributes to poor accuracy when performing UT thickness gauging?
a. Improper calibration
b. Laminations in the metal
c. Low levels of lighting
d. Surface roughness
c. Low levels of lighting
85
85. A pressure test is normally conducted after all:
a. repairs.
b. alterations and major repairs.
c. rerates.
d. repairs and alterations.
b. alterations and major repairs.
86
86. A pressure test shall be conducted after:
a. repairs, when the inspector believes one is necessary.
b. all alterations.
c. all repairs.
d. all repairs and all alterations.
a. repairs, when the inspector believes one is necessary.
87
87. A nozzle has been added to the vessel. Instead of pressure testing the entire vessel, just the nozzle will be pressure tested (temporary cap welded on the inside of the vessel). This substitution of a component pressure test instead of testing the entire vessel requires the approval of:
a. just the Inspector.
b. just the Engineer.
c. either the Inspector or Engineer.
d. both the Inspector and Engineer.
b. just the Engineer.
88
88. An alteration has been made on a vessel that was built to ASME Section VIII, 1990 edition. A hydrotest will be conducted. What is the recommended test pressure?
a. 100% of MA WP
b. 130% of MA WP corrected for temperature
c. 150% of MA WP corrected for temperature
d. At a pressure specified by the Owner/User
c. 150% of MA WP corrected for temperature
89
89. An alteration has been made on a vessel that was built to ASME Section VIII, 2004 edition. A hydrotest will be conducted. What is the recommended test pressure?
a. 100% of MA WP
b. 130% of MA WP corrected for temperature
c. 150% of MA WP corrected for temperature
d. At a pressure specified by the Owner/User
b. 130% of MA WP corrected for temperature
90
90. A major repair has been completed on a vessel that was built to ASME Sect. VIII, 1990 edition. In 2007 the vessel was rerated to the 2007 edition of Sect. VIII. A hydrotest will be conducted. What is the recommended test pressure?
a. 100% of MA WP
b. 130% of MA WP corrected for temperature
c. 150% of MA WP corrected for temperature
d. At a pressure specified by the Owner/User
b. 130% of MA WP corrected for temperature
91
91. A hydrotest is conducted on an exchanger shell to check for roll leaks. What is the recommended test pressure?
a. 100% of MAWP
b. 130% of MA WP corrected for temperature
c. 150% of MA WP corrected for temperature
d. At a pressure specified by the Owner/User
d. At a pressure specified by the Owner/User
92
92. When a tightness test is performed on a vessel, the test pressure is:
a. based on the construction code's test pressure.
b. based on the current code's test pressure.
c. specified by the Inspector.
d. specified by the Owner/User.
d. specified by the Owner/User.
93
93. A hydrotest is conducted on an in-service vessel after a major repair. The vessel MA WP is 100 psig and the test pressure is 150 psig. The close visual examination should be conducted at what pressure?
a. Less than or equal 100 psig
b. Anywhere between 125 to 150 psig
c. At 150 psig
d. At a pressure specified by the Owner/User
a. Less than or equal 100 psig
94
94. A hydrotest is being conducted on a vessel. The relief device is not removed or blinded. What other option can be used to keep the relief device from popping?
a. Blind the outlet of the relief device
b. Place test clamps on the relief device
c. Adjust the relief device's valve spring
d. Place a rupture disk under the relief device rated for 125% of MA WP
b. Place test clamps on the relief device
95
95. A hydrotest is planned for a large low-chrome vessel. Be sure that:
a. the supporting structure is adequate for the weight of the water.
b. low chloride water is used.
c. an inhibitor is added to prevent stress corrosion cracking.
d. a relief device is added with a set pressure 110% of the test pressure.
a. the supporting structure is adequate for the weight of the water.
96
96. After an alteration, a hydrotest is being conducted on a Type 300 SS vessel that is 0.500" thick. The vessel was designed to ASME Section VIII, 2002 edition. Which of the following is not a specified requirement?
a. Use low chloride water
b. Test pressure is 130% of MA WP corrected for temperature
c. Inspector validates the vessel is thoroughly drained and dry
d. Minimum base metal temperature must be at least MDMT + 30 °F
d. Minimum base metal temperature must be at least MDMT + 30 °F
97
97. What is a concern when hydrotesting sensitized austenitic stainless steel?
a. Brittle failure
b. Oxygen pitting
c. Polytheonic stress corrosion cracking
d. Temper-embrittlement
c. Polytheonic stress corrosion cracking
98
98. A hydrotest is conducted on an austenitic SS vessel. What is the maximum allowed content of chloride in the hydrotest water?
a. 10 ppm
b. 50 ppm
C. 100 ppm
d. 250 ppm
b. 50 ppm
99
99. Which of the following is not a good reason for substituting a pneumatic test for a hydrotest?
a. Less expensive
b. Support structure cannot hold the weight of the water
c. Traces of water will put the process product "off-spec"
d. Vessel is refractory lined
a. Less expensive
100
100. Which of the following is true when pneumatic testing is performed after a major repair on a vessel that has a shell that is 0.375" thick?
a. An engineer should develop a specific procedure
b. The test pressure should be 130% of MA WP and corrected for temperature
c. The metal temperature should be anything above MDMT
d. The Owner/User should approve
a. An engineer should develop a specific procedure
101
101. Brittle fractures usually have occurred:
a. during startup.
b. during the first hydrotest or overload.
c. in vessels made with thinner materials.
d. in stainless steel vessels.
b. during the first hydrotest or overload.
102
102. Which of the following materials is most prone to temper embrittlement?
a. Carbon steel
b. High nickel alloys
c. Low chromes
d. Stainless steel
c. Low chromes
103
103. A hydrotest is performed on an existing vessel following the replacement of a shell plate. The vessel is 1-1/2" thick. What is the minimum allowed metal temperature during the test?
a. 32 °f.
b. 70 °f.
c. 10 °f. above the vessel's MDMT
d. 30 °f. above the vessel's MDMT
c. 10 °f. above the vessel's MDMT
104
104. A hydrotest is performed on a vessel following the replacement of a 2.5" thick head. What is the minimum allowed metal temperature during the test?
a. 32 °f.
b. 70 °f.
c. 10 °f. above the vessel's MDMT
d. 30 °f. above the vessel's MDMT
d. 30 °f. above the vessel's MDMT
105
105. A hydrotest is performed on a vessel with austenitic SS cladding. What is the maximum allowed water temperature?
a. 40 °f.
b. 80 °f.
C. 120 °f.
d. 150 °f.
C. 120 °f.
106
106. NDE is substituted for a pressure test after a major repair on an in-service vessel.
Who must approve this substitution?
a. Just the Inspector
b. Just the Engineer
c. Either the Inspector or Engineer
d. Both the Inspector and Engineer
d. Both the Inspector and Engineer
107
107. Per API 510, during repairs and alterations, the inspector shall verify that the new materials being used are correct. What is the minimum amount of verification that the inspector shall perform?
a) 100% of all metallurgy's
b) 100% of all alloys
c) 100% of all high alloys
d) A sampling of all metallurgy's
e) A sampling of all alloys
f) A sampling of all high alloys
d) A sampling of all metallurgy's
108
108. During repairs and alterations, who determines the percentage of new materials to check for conformance to specifications?
a. Inspector
b. Owner/User
c. Engineer or Owner/User
d. Inspector or Engineer
e. Inspector or Owner/User
e. Inspector or Owner/User
109
109. Who should perform PMI?
a. Examiner
b. Inspector
c. Examiner or Inspector
d. Examiner or Inspector or Qualified Others
c. Examiner or Inspector
110
110. What document provides addition guidance about material verification?
a. API 571
b. API 578
c. API 580
d. API 2201
b. API 578
111
111. An existing vessel component foils. Analysis of the failure determines that an incorrect material was inadvertently substituted during fabrication. Who should determine whether other components should be checked for correct metallurgy?
a. Inspector
b. Owner/User
c. Either the Inspector or Engineer
d. Both the Inspector or Engineer
e. Both the Engineer and Owner/User
a. Inspector
112
112. During an in-service inspection, a crack-like flaw was discovered in a weld. This imperfection must be:
a) evaluated to the acceptance criteria of the construction code.
b) evaluated to the acceptance criteria of the current ASME VIII.
c) evaluated by an Inspector or Engineer.
d) evaluated by an Engineer or Corrosion Specialist.
e) repaired.
d) evaluated by an Engineer or Corrosion Specialist.
113
113. During an in-service inspection, preferential corrosion was discovered in a weld. This imperfection shall be evaluated:
a) to the acceptance criteria of the construction code.
b) to the acceptance criteria of the current ASME VIII.
c) by an Inspector.
d) by an Engineer or Corrosion Specialist.
c) by an Inspector.
114
114. Flange leaks in certain fluids can cause:
a) galling of bolts and nuts.
b) bolt lengths to shorten.
c) bolts to crack or corrode.
d) bolting stresses to decrease.
c) bolts to crack or corrode.
115
115. A leaking flange was repaired by a leak sealing company that pumped sealant in the gasket area. Later the flange leaks again. What should be done?
a) Examine bolts with UT prior to repumping
b) Examine the flange area with profile RT prior to repumping
c) Repump the flanges
d) Shutdown piping and repair flanges
a) Examine bolts with UT prior to repumping
116
116. Flange bolts are unacceptable if the lack of engagement exceeds:
a) 0 threads.
b) 1/2 thread.
c) 1 thread.
d) 2 threads.
c) 1 thread.
117
117. Additional guidance on the inspection and repair of flanged joints can be found in:
a) ASME PCC-1.
b) ASME Section II.
c) ASME Section VIII, Div 2.
d) API 580.
a) ASME PCC-1.
